CN104499972A - Maintenance device for moderator reflector plug-in mounted in underground helium container - Google Patents
Maintenance device for moderator reflector plug-in mounted in underground helium container Download PDFInfo
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- CN104499972A CN104499972A CN201410590396.XA CN201410590396A CN104499972A CN 104499972 A CN104499972 A CN 104499972A CN 201410590396 A CN201410590396 A CN 201410590396A CN 104499972 A CN104499972 A CN 104499972A
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- 229910052734 helium Inorganic materials 0.000 title claims abstract description 71
- 239000001307 helium Substances 0.000 title claims abstract description 71
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000012423 maintenance Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 244000144985 peep Species 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 11
- 230000002285 radioactive effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012806 monitoring device Methods 0.000 abstract 1
- 101100129922 Caenorhabditis elegans pig-1 gene Proteins 0.000 description 17
- 101100520057 Drosophila melanogaster Pig1 gene Proteins 0.000 description 17
- 230000009471 action Effects 0.000 description 5
- 230000011218 segmentation Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005260 alpha ray Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002371 helium Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001956 neutron scattering Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
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- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a maintenance device for a moderator reflector plug-in, in particular to a maintenance device for a moderator reflector plug-in mounted in an underground helium container. According to the maintenance device for the moderator reflector plug-in mounted in the underground helium container, the moderator reflector plug-in which is mounted in the underground helium container, is not assisted in operation by any manipulator in the whole journey, and has extra large, overweight and superstrong radiation can be maintained in a segmented manner. The maintenance device comprises a lifting lead tank, a three-axis platform, a lifting appliance, a long-handle tool, a maintenance tool, a monitoring device, a display device and a storage lead tank. The maintenance device and a method are adopted to maintain the moderator reflector plug-in, and the problems of manufacturing of an extra large lifting shielding container, bearing difficulties of a crane, construction of large type aftertreatment maintenance areas like a volume shrinking maintenance area, development of radiation-resisting volume shrinking tools and the like are solved; meanwhile, irradiation of workers is reduced, and aftertreatment difficulties like volume reducing are solved; the cost is reduced, and the replacement efficiency is improved; and what is more important, through the method, an existing heat chamber can be utilized for achieving transferring of a radioactive body among different shielding devices.
Description
Technical field
The present invention relates to a kind of service equipment of slowing-down device reflector plug-in unit, the espespecially a kind of service equipment slowing-down device reflector plug-in unit being arranged in the helium vessel of underground, omnidistance mechanical Handball Association helps the superpower radiation of the super-big and overweight of operation being carried out a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground of segmentation maintenance.
Background technology
Neutron is that people understand one of important probe of material microstructure and motion state, and the main target at CSNS (hereinafter referred to as CSNS) target station is exactly efficiently produce and utilize neutron, is the science application service of neutron; The impulse type neutron source that CSNS project is accelerated based on proton source as China's First, will drive breakthrough and the development of large quantities of important key technology in fields such as accelerator, neutronics and neutron detections.
Slowing-down device reflector plug-in unit is one of target station core component, the high-energy neutron produced by spallation reaction after high energy proton enters to shoot at the target through slowing-down device slowing down be low-energy neutron for neutron scattering experiment, reflector integrates reflection, slowing down and the new ability producing neutron; Slowing-down device and the reflector of CSNS are bonded together, and are designed to monolithic dongle configuration, are referred to as slowing-down device reflector plug-in unit; Spallation reaction also can produce a large amount of reflectivity nucleic while producing neutron, and outwards launches offspring, as gamma-rays, and alpha ray etc.Slowing-down device reflector plug-in unit is activated in radiation environment, through the decay in a lot of year; Slowing-down device reflector plug-in unit belongs to main equipment, complex structure, and surrounding arranges various pipeline, gross weight about 33 tons, maximum gauge 1300mm, minimum diameter 1000mm, whole height 5411mm; Slowing-down device reflector dongle configuration is installed in the helium vessel of underground, and projected life is 10 years, by maintained replacing after the completing the term of service.More change jobs necessary straighforward operation, but the research and development technology of current domestic radioresistance dynamic power machine hand and robot is immature, must expend huge fund from external import, and under this kind of environment, the maintenance replacing of large-scale radioactive component still belongs to the first at home; Although Chinese patent notification number is CN 103114821 A, patent name is that under a kind of deep-well radiation environment, pipeline shears remote maintaining equipment and service procedure thereof, provide and a kind of under deep-well radiation environment, depart from manipulator utilize long handle instrument to carry out shearings remote maintaining equipment and service procedure thereof to pipeline, but specifically do not disclose equipment and the method for the slowing-down device reflector plug-in unit being arranged in the helium vessel of underground, omnidistance mechanical Handball Association helps the superpower radiation of the super-big and overweight of operation being carried out to segmentation maintenance.
Therefore, a kind of equipment that the slowing-down device reflector plug-in unit being arranged on the superpower radiation of super-big and overweight in the helium vessel of underground is safeguarded and maintaining method is badly in need of.
Summary of the invention
In order to make up deficiency of the prior art, the present invention is intended to the service equipment of openly a kind of slowing-down device reflector plug-in unit, the espespecially a kind of service equipment slowing-down device reflector plug-in unit being arranged in the helium vessel of underground, omnidistance mechanical Handball Association helps the superpower radiation of the super-big and overweight of operation being carried out a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground of segmentation maintenance.
For achieving the above object, the technical solution used in the present invention is: a kind of service equipment of the slowing-down device reflector plug-in unit be arranged in the helium vessel of underground, and described service equipment comprises lifting pig, three-axis platform, suspender, long handle instrument, maintenance tool, supervising device, display unit and storage pig; Wherein three-axis platform is arranged on lifting pig top, and suspender is arranged on three-axis platform, and supervising device and maintenance tool are arranged on long handle instrument, and display unit comprises display screen and single-chip microcomputer, and supervising device is electrically connected by single-chip microcomputer and display unit.
Described lifting pig is the cylindrical shape of bottom opening, mainly comprise pig body, left side pull plate, right side pull plate and pull substrate, pig body is the hollow cylindrical tank body of bottom opening, pig body is welded on bearing by bottom opening part, rest base is welded on pull substrate, pull base plate bottom is welded on base plate, wherein bearing, pull substrate and base plate all offer the central through hole identical with pig body internal diameter, pull substrate is provided with two guide rail structures be parallel to each other, left side pull plate and right side pull plate difference Matching installation are on the left side of guide rail and right side, what in the middle of left side pull plate and right side pull plate, butted part was designed to cooperatively interact is stepped, both ends of the surface are also designed with the step that can mutually mate respectively, when left side pull plate and right side pull plate close the hole promoting salable bearing and plumbous tank base along guide rail toward center, now left side pull plate and right side pull plate work good after end face be plane, the gap of bearing and pull plate is sealed completely by left side pull plate and right side pull plate both ends of the surface step, when left side pull plate and right side pull plate make base plate along guide rail when pull promotes outward, pull substrate, through hole between bearing and pig body is in communicating state.
Described three-axis platform be one have work alone stand and can linearly rail run minor crane matching used with electric hoist, suspender can be arranged on three-axis platform suspension hook, suspender can with bolt auto-articulated, be fixed on by occlusion bolt by lifting object, Remote operation can complete lifting.
Described long handle instrument comprises vertical stock and operation cross bar, and operation cross bar is detachably arranged on the top of vertical stock, and maintenance tool and supervising device are arranged on bottom vertical stock.
Described maintenance tool comprises radioresistance hydraulic pressure scissors, electric fixture and Electric torque wrench, is the bottom being detachably arranged on vertical stock.
Described supervising device is radioresistance monitoring camera, is arranged on the bottom of vertical stock, by adjusting vertical stock, camera is adjusted to best monitoring position.
Described storage pig is made up of lower barrel body and bung.
Described three-axis platform mainly comprises electric hoist device, horizontal cross guiding device, horizontal cross drive unit, Working gantry, horizontal longitudinal driving device and horizontal longitudinal guide.
Described lifting pig is large-scale pig, high 2.3 meters, tank body external diameter 1.5 meters.
Described lifting pig top is provided with four bolt suspension ring, four three-axis platform supporting leg mounting seat, hole for hoist, a watch-dog peep hole, and wherein bolt suspension ring are detachable installation.
Described hole for hoist and peep hole are provided with supporting lifting port lid and handhole cover.
Described three-axis platform is fixedly mounted on lifting pig by four the three-axis platform supporting leg mounting seat lifting pig top.
Be arranged on a maintaining method for the slowing-down device reflector plug-in unit in the helium vessel of underground, described maintaining method mainly comprises the following steps:
(1) take out most helium: described helium vessel is the deep-well environment being full of helium, the helium of the helium vessel under slowing-down device reflective inserts working environment is drained to the greatest extent.
(2) by slowing-down device reflector plug-in unit segment processing: radioresistance camera is arranged on bottom vertical stock and also manually puts into helium vessel, then bottom vertical stock radioresistance hydraulic pressure scissors being arranged on long handle instrument, and utilize overhead traveling crane to hang in helium vessel by long handle instrument, by observing in camera collection to helium vessel the immediate status shown on a display screen, manual control operation cross bar is to adjust the position of hydraulic pressure scissors as required, when after hydraulic pressure scissors align with tube, Remote Open hydraulic oil switch, hydraulic pressure scissors carries out cutting pipe, then long handle instrument is hung out, change the long handle instrument being provided with electric fixture into, electric fixture is utilized to be taken out in helium vessel by the pipeline cut off, change the long handle instrument being provided with Electric torque wrench again into, Electric torque wrench is utilized to be unscrewed by the stay bolt be connected between first paragraph plug-in unit with second segment plug-in unit, so just successfully can isolate first paragraph slowing-down device reflector plug-in unit.
(3) to sling slowing-down device reflector plug-in unit: utilize overhead traveling crane will lift pig lifting to helium vessel top, make lifting pig concentric with helium vessel, three-axis platform is winched to lifting pig top by overhead traveling crane again, now staff can be close, three-axis platform is fixedly mounted on by four the three-axis platform supporting leg mounting seat lifting pig top and lifts on pig and be bolted, suspender hangs on three-axis platform suspension hook, pull open left side pull plate and right side pull plate, make pig body, bearing, pull substrate, base plate and helium vessel connect, now suspender can enter in helium vessel through pig top hoisting port, operating personnel utilize control button to be in by suspender articulation port directly over occlusion bolt, open gauge tap the articulation port of suspender is opened and drops to lifting bolt root, closing control switch makes suspender be engaged, three-axis platform is utilized to sling first paragraph slowing-down device reflector plug-in unit.
(4) slowing-down device reflector plug-in unit is hung out: first paragraph slowing-down device reflector plug-in unit is sling to lifting pig by suspender completely, push right side pull plate and left side pull plate respectively, and first paragraph slowing-down device reflector plug-in unit is dropped on pull plate, inserting safety pin makes it lock, then overhead traveling crane is utilized three-axis platform to be winched to together with lifting pig top, the hot cell hole for hoist of loaded concrete shield, slowing-down device reflector plug-in unit is sling by suspender, extract safety pin, after extracting left side pull plate and right side pull plate out, slowing-down device reflector plug-in unit is hung in hot cell, in the staving being transported to underground storage pig finally by overhead traveling crane in hot cell and closed bung.
(5) the maintenance step of remaining three sections of slowing-down device reflector plug-in units is identical with (2) (3) (4).
The invention has the beneficial effects as follows: the slowing-down device reflector plug-in unit that the invention provides the superpower radiation of a kind of super-big and overweight to being arranged in the helium vessel of underground carries out segmentation and safeguards that omnidistance mechanical Handball Association helps service equipment and the maintaining method of operation, the radioresistance hydraulic pressure scissors after first the present invention utilizes repacking, electric fixture, Electric torque wrench are cut pipe, clamp to slowing-down device reflector plug-in unit, are torn the segment processing of bolt open, then Large-scale Hoisting pig is utilized, three-axis platform and carry out of suspender to slowing-down device reflector plug-in unit lift, finally utilize overhead traveling crane in hot cell and hot cell that slowing-down device reflector plug-in unit is transported to underground storage pig, because slowing-down device reflector plug-in unit is arranged in the helium vessel of underground, whole operating process inaccurate direct-view helium vessel is inner, by radioresistance camera, the instant sight in helium vessel can only be fed back to display screen, the operation of whole process is carried out by observing display screen, Apparatus and method for of the present invention is adopted the maintenance of intense radiation body slowing-down device reflector plug-in unit under this helium vessel environment to be changed to the manufacture difficulty not only solving super large lifting cask flask, the carrying difficulty of crane, the problems such as the construction of the large-scale servicing area of the post processings such as capacity reducing and the research and development of radioresistance capacity reducing instrument, greatly reduce the irradiation of staff simultaneously, solve the post-processing difficulty such as capacity reducing, reduce costs, improve and change efficiency, the more important thing is that the method utilizes existing hot cell to achieve emitter from the transhipment between each different shielding device.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view lifting pig in the present invention.
Fig. 2 is the perspective view lifting pig in the present invention.
Fig. 3 is the perspective view of three-axis platform in the present invention.
Fig. 4 is that the present invention carries out slowing-down device reflector plug-in unit safeguarding the method schematic diagram changed.
Accompanying drawing mark illustrates: 1-lifts pig, 11-suspension ring, 12-pig body, 13-bearing, pull plate on the right side of 14-, 15-pull substrate, 16-guide rail, 17-base plate, pull plate on the left of 18-, 19-safety pin, 110-mounting seat, 2-three-axis platform, 21-electric hoist device, 22-horizontal cross guiding device, 23-horizontal cross drive unit, 24-Working gantry, the horizontal longitudinal driving device of 25-, the horizontal longitudinal guide of 26-, 3-suspender, 4-helium vessel, 5-slowing-down device reflector plug-in unit.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:
Be arranged on a service equipment for the slowing-down device reflector plug-in unit in the helium vessel of underground, described service equipment comprises lifting pig 1, three-axis platform 2, suspender 3, long handle instrument, maintenance tool, supervising device, display unit and storage pig; Wherein three-axis platform 2 is arranged on lifting pig 1 top, suspender 3 can adopt zip-lift suspender 3, is arranged on three-axis platform 2, and supervising device and maintenance tool are arranged on long handle instrument, display unit comprises display screen and single-chip microcomputer, and supervising device is electrically connected by single-chip microcomputer and display unit.
Described lifting pig 1 is the cylindrical shape of bottom opening, mainly comprise pig body 12, left side pull plate 18, right side pull plate 14 and pull substrate 15, pig body 12 is the hollow cylindrical tank body of bottom opening, pig body 12 is welded on bearing 13 by bottom opening part, bearing 13 bottom welding is on pull substrate 15, pull substrate 15 bottom welding is on base plate 17, wherein bearing 13, pull substrate 15 and base plate 17 all offer the central through hole identical with pig body 12 internal diameter, pull substrate 15 is provided with two guide rail structures be parallel to each other, left side pull plate 18 and right side pull plate 14 difference Matching installation are on the left side of guide rail 16 and right side, it is stepped that left side pull plate 18 and the middle butted part of right side pull plate 14 are designed to cooperatively interact, both ends of the surface are also designed with the step that can mutually mate respectively, when left side pull plate 18 and right side pull plate 14 close the hole promoted bottom salable bearing 13 and pig body 12 along guide rail 16 toward center, now left side pull plate 18 and right side pull plate 14 work good after end face be plane, bearing 13 is sealed by left side pull plate 18 and right side pull plate 14 both ends of the surface step completely with the gap of pull plate, when left side pull plate 18 and right side pull plate 14 make base plate 17 along guide rail 16 when pull promotes outward, pull substrate 15, through hole between bearing 13 and pig body 12 is in communicating state.
Described three-axis platform 2 be one have work alone stand 24 and can linearly rail run minor crane matching used with electric hoist, suspender 3 can be arranged on three-axis platform 2 suspension hook, suspender 3 can with bolt auto-articulated, be fixed on by occlusion bolt by lifting object, Remote operation can complete lifting.
Described long handle instrument comprises vertical stock and operation cross bar, and operation cross bar is detachably arranged on the top of vertical stock, and maintenance tool and supervising device are arranged on bottom vertical stock; The operating side of operation cross bar is provided with operating handle, and the quantity of vertical stock can be more than three or three, and operation cross bar can coordinate and is arranged on the vertical stock of every bar, and vertical stock can be arranged to the length-adjustable bar that can shrink and stretch.
Described maintenance tool comprises radioresistance hydraulic pressure scissors, electric fixture and Electric torque wrench, is the bottom being detachably arranged on vertical stock; Wherein hydraulic pressure scissors cooperation supervising device completes and cuts pipe action, electric fixture coordinates supervising device to complete clamp action, Electric torque wrench cooperation supervising device completes tears bolt action open, namely three kinds of maintenance tools need to carry out customized, and slowing-down device reflector plug-in unit 5 successfully can be carried out segment processing by these three actions.
Described supervising device is radioresistance monitoring camera, be arranged on the bottom of vertical stock, by adjusting vertical stock, camera is adjusted to best monitoring position, instant sight in helium vessel 4 reacts to display screen by monitoring camera, because whole operating process inaccurate direct-view helium vessel 4 is inner, can only operate by observing display screen.
Described storage pig is made up of lower barrel body and bung, and opening bung can put in staving by slowing-down device reflector plug-in unit 5, and then slowing-down device reflector plug-in unit 5 can be isolated in store in pig and deposit by closing bucket-lid.
Described three-axis platform 2 mainly comprises electric hoist device 21, horizontal cross guiding device 22, horizontal cross drive unit 23, Working gantry 24, horizontal longitudinal driving device 25 and horizontal longitudinal guide 26, horizontal cross drive unit 23 and horizontal longitudinal driving device 25 can drive workbench to carry out horizontal and vertical operation along horizontal cross guiding device 22 and horizontal longitudinal guide 26 respectively, and horizontal cross and longitudinal running gear can drive electric hoist device 21 to carry out horizontal and vertical operation.
Described lifting pig 1 is large-scale pig, high 2.3 meters, tank body external diameter 1.5 meters, overall cost is very high, can not be used for long term storage radioactive source, must be transported to and store pig storage, after radioactivity slowing-down device reflector plug-in unit 5 hangs in the hot cell of loaded concrete shield in lifting pig 1, recycle hot indoor equipment and be transported to basement storage pig.
Described lifting pig 1 top is provided with four bolt suspension ring 11, four three-axis platform supporting leg mounting seat 110, a hole for hoist, a watch-dog peep hole, hole for hoist and peep hole are provided with supporting lifting port lid and handhole cover, wherein bolt suspension ring 11 are detachable installation, three-axis platform 2 is fixedly mounted on lifting pig 1 by four three-axis platform supporting leg mounting seat 110 at lifting pig 1 top, lifting four, pig 1 top bolt suspension ring 11 are used for slinging and assemble lifting pig 1, before three-axis platform 2 and four, pig top supporting leg firm banking installed fixing, to dismantle four bolt suspension ring 11.
A kind of maintaining method of the slowing-down device reflector plug-in unit be arranged in the helium vessel of underground, the segmentation in helium vessel 4 of the slowing-down device reflector plug-in unit 5 of superpower for super-big and overweight radiation is safeguarded and changes, four sections of replacings are divided into according to the slowing-down device reflector tube-cooled time, owing to installing with the form of overall plug-in unit when slowing-down device reflector plug-in unit 5 is installed, connected by stay bolt between four sections of plug-in units, surrounding is covered with pipeline, maintaining method all along with cutting pipe, clamp, tearing a series of actions such as bolt open, therefore is arranged to following steps by the replacing of each section:
(1) take out most helium: described helium vessel is the deep-well environment being full of helium, the helium of the helium vessel 4 under slowing-down device reflective inserts working environment is drained to the greatest extent.
(2) by slowing-down device reflector plug-in unit segment processing: radioresistance camera is arranged on bottom vertical stock and also manually puts into helium vessel, then bottom vertical stock radioresistance hydraulic pressure scissors being arranged on long handle instrument, and utilize overhead traveling crane to hang in helium vessel 4 by long handle instrument, by observing display immediate status on a display screen in camera collection to helium vessel 4, manual control operation cross bar is to adjust the position of hydraulic pressure scissors as required, when after hydraulic pressure scissors align with tube, Remote Open hydraulic oil switch, hydraulic pressure scissors carries out cutting pipe, then long handle instrument is hung out, change the long handle instrument being provided with electric fixture into, electric fixture is utilized to be taken out in helium vessel by the pipeline cut off, change the long handle instrument being provided with Electric torque wrench again into, Electric torque wrench is utilized to be unscrewed by the stay bolt be connected between first paragraph plug-in unit with second segment plug-in unit, so just successfully can isolate first paragraph slowing-down device reflector plug-in unit 5.
(3) to sling slowing-down device reflector plug-in unit 5: utilize overhead traveling crane to be lifted by lifting pig 1 to helium vessel 4 top, make lifting pig 1 concentric with helium vessel 4, three-axis platform 2 is winched to lifting pig 1 top by overhead traveling crane again, now staff can be close, three-axis platform 2 is fixedly mounted on by four three-axis platform 2 supporting leg mounting seat 110 at lifting pig 1 top and lifts on pig 1 and be bolted, suspender 3 hangs on three-axis platform suspension hook, pull open left side pull plate 18 and right side pull plate 14, make pig body 12, bearing 13, pull substrate 15, base plate 17 and helium vessel 4 connect, now suspender 3 can enter in helium vessel 4 through pig top hoisting port, operating personnel utilize control button to be in by suspender articulation port directly over occlusion bolt, open gauge tap the articulation port of suspender 3 is opened and drops to lifting bolt root, closing control switch makes suspender 3 be engaged, three-axis platform 2 is utilized to sling first paragraph slowing-down device reflector plug-in unit 5.
(4) slowing-down device reflector plug-in unit 5 is hung out: first paragraph slowing-down device reflector plug-in unit 5 is sling to lifting pig 1 by suspender 3 completely, push right side pull plate 14 and left side pull plate 18 respectively, and first paragraph slowing-down device reflector plug-in unit 5 is dropped on pull plate, inserting safety pin 19 makes it lock, then overhead traveling crane is utilized three-axis platform 2 to be winched to together with lifting pig 1 top, the hot cell hole for hoist of loaded concrete shield, slowing-down device reflector plug-in unit 5 is sling by suspender 3, extract safety pin 19, after extracting left side pull plate 18 and right side pull plate 14 out, slowing-down device reflector plug-in unit 5 is hung in hot cell, in the staving being transported to underground storage pig finally by overhead traveling crane in hot cell and closed bung.
(5) the maintenance step of remaining three sections of slowing-down device reflector plug-in units 5 is identical with (2) (3) (4).
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, the technician of the industry, under the inspiration of the technical program, some distortion and amendment can be made, every above embodiment is done according to technical spirit of the present invention any amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. be arranged on a service equipment for the slowing-down device reflector plug-in unit in the helium vessel of underground, it is characterized in that: described service equipment comprises lifting pig, three-axis platform, suspender, long handle instrument, maintenance tool, supervising device, display unit and storage pig; Wherein three-axis platform is arranged on lifting pig top, and suspender is arranged on three-axis platform, and supervising device and maintenance tool are arranged on long handle instrument, and display unit comprises display screen and single-chip microcomputer, and supervising device is electrically connected by single-chip microcomputer and display unit;
Described lifting pig is the cylindrical shape of bottom opening, mainly comprise pig body, left side pull plate, right side pull plate and pull substrate, pig body is the hollow cylindrical tank body of bottom opening, pig body is welded on bearing by bottom opening part, rest base is welded on pull substrate, pull base plate bottom is welded on base plate, wherein bearing, pull substrate and base plate all offer the central through hole identical with pig body internal diameter, pull substrate is provided with two guide rail structures be parallel to each other, left side pull plate and right side pull plate difference Matching installation are on the left side of guide rail and right side, what in the middle of left side pull plate and right side pull plate, butted part was designed to cooperatively interact is stepped, both ends of the surface are also designed with the step that can mutually mate respectively, when left side pull plate and right side pull plate close the hole promoting salable bearing and plumbous tank base along guide rail toward center, now left side pull plate and right side pull plate work good after end face be plane, the gap of bearing and pull plate is sealed completely by left side pull plate and right side pull plate both ends of the surface step, when left side pull plate and right side pull plate make base plate along guide rail when pull promotes outward, pull substrate, through hole between bearing and pig body is in communicating state,
Described three-axis platform be one have work alone stand and can linearly rail run minor crane matching used with electric hoist, suspender can be arranged on three-axis platform suspension hook, suspender can with bolt auto-articulated, be fixed on by occlusion bolt by lifting object, Remote operation can complete lifting;
Described long handle instrument comprises vertical stock and operation cross bar, and operation cross bar is detachably arranged on the top of vertical stock, and maintenance tool and supervising device are arranged on bottom vertical stock;
Described maintenance tool comprises radioresistance hydraulic pressure scissors, electric fixture and Electric torque wrench, is the bottom being detachably arranged on vertical stock;
Described supervising device is radioresistance monitoring camera, is arranged on the bottom of vertical stock, by adjusting vertical stock, camera is adjusted to best monitoring position;
Described storage pig is made up of lower barrel body and bung.
2. the service equipment of a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground according to claim 1, is characterized in that: described three-axis platform mainly comprises electric hoist device, horizontal cross guiding device, horizontal cross drive unit, Working gantry, horizontal longitudinal driving device and horizontal longitudinal guide.
3. the service equipment of a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground according to claim 1, is characterized in that: described lifting pig is large-scale pig, high 2.3 meters, tank body external diameter 1.5 meters.
4. the service equipment of a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground according to claim 1, it is characterized in that: described lifting pig top is provided with four bolt suspension ring, four three-axis platform supporting leg mounting seat, hole for hoist, a watch-dog peep hole, wherein bolt suspension ring are detachable installation.
5. the service equipment of a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground according to claim 4, is characterized in that: described hole for hoist and peep hole are provided with supporting lifting port lid and handhole cover.
6. the service equipment of a kind of slowing-down device reflector plug-in unit be arranged in the helium vessel of underground according to claim 1, is characterized in that: described three-axis platform is fixedly mounted on lifting pig by four the three-axis platform supporting leg mounting seat lifting pig top.
7. be arranged on a maintaining method for the slowing-down device reflector plug-in unit in the helium vessel of underground, it is characterized in that: described maintaining method mainly comprises the following steps:
(1) take out most helium: described helium vessel is the deep-well environment being full of helium, the helium of the helium vessel under slowing-down device reflector plug-in unit working environment is drained to the greatest extent;
(2) by slowing-down device reflector plug-in unit segment processing: radioresistance camera is arranged on bottom vertical stock and also manually puts into helium vessel, then bottom vertical stock radioresistance hydraulic pressure scissors being arranged on long handle instrument, and utilize overhead traveling crane to hang in helium vessel by long handle instrument, by observing in camera collection to helium vessel the immediate status shown on a display screen, manual control operation cross bar is to adjust the position of hydraulic pressure scissors as required, when after hydraulic pressure scissors align with tube, Remote Open hydraulic oil switch, hydraulic pressure scissors carries out cutting pipe, then long handle instrument is hung out, change the long handle instrument being provided with electric fixture into, electric fixture is utilized to be taken out in helium vessel by the pipeline cut off, change the long handle instrument being provided with Electric torque wrench again into, Electric torque wrench is utilized to be unscrewed by the stay bolt be connected between first paragraph plug-in unit with second segment plug-in unit, so just successfully can isolate first paragraph slowing-down device reflector plug-in unit,
(3) to sling slowing-down device reflector plug-in unit: utilize overhead traveling crane will lift pig lifting to helium vessel top, make lifting pig concentric with helium vessel, three-axis platform is winched to lifting pig top by overhead traveling crane again, now staff can be close, three-axis platform is fixedly mounted on by four the three-axis platform supporting leg mounting seat lifting pig top and lifts on pig and be bolted, suspender hangs on three-axis platform suspension hook, pull open left side pull plate and right side pull plate, make pig body, bearing, pull substrate, base plate and helium vessel connect, now suspender can enter in helium vessel through pig top hoisting port, operating personnel utilize control button to be in by suspender articulation port directly over occlusion bolt, open gauge tap the articulation port of suspender is opened and drops to lifting bolt root, closing control switch makes suspender be engaged, three-axis platform is utilized to sling first paragraph slowing-down device reflector plug-in unit,
(4) slowing-down device reflector plug-in unit is hung out: first paragraph slowing-down device reflector plug-in unit is sling to lifting pig by suspender completely, push right side pull plate and left side pull plate respectively, and first paragraph slowing-down device reflector plug-in unit is dropped on pull plate, inserting safety pin makes it lock, then overhead traveling crane is utilized three-axis platform to be winched to together with lifting pig top, the hot cell hole for hoist of loaded concrete shield, slowing-down device reflector plug-in unit is sling by suspender, extract safety pin, after extracting left side pull plate and right side pull plate out, slowing-down device reflector plug-in unit is hung in hot cell, in the staving being transported to underground storage pig finally by overhead traveling crane in hot cell and closed bung,
(5) the maintenance step of remaining three sections of slowing-down device reflector plug-in units is identical with (2) (3) (4).
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| CN105384078A (en) * | 2015-10-27 | 2016-03-09 | 东莞中子科学中心 | Lifting transporting system for moderator reflector and lifting positioning and transporting method |
| CN105841987A (en) * | 2016-04-05 | 2016-08-10 | 广东汇利兴精工科技有限公司 | Roller line transmission system for assembling lead tank in hot chamber, and transmission method thereof |
| CN107243901A (en) * | 2017-05-23 | 2017-10-13 | 东莞理工学院 | A kind of pipeline jig and its gripping method applied to radiation environment remote maintaining |
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| CN105384078A (en) * | 2015-10-27 | 2016-03-09 | 东莞中子科学中心 | Lifting transporting system for moderator reflector and lifting positioning and transporting method |
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| CN104499972B (en) | 2016-08-31 |
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